With her name in the press, it was only a matter of time before home videos of her childhood emerged that would come back to "haunt" her - like the one below that shows her win two chopsticks competitions at the age of 10.

The competition involves two people sitting opposite each other at a table. The idea is to pick up small coffee beans with chopsticks and drop them, one by one, into a mug. The winner is the one who finishes first.

Osaka wins both times, showing she was perhaps always destined to be a champion.

"I always knew this would come back to haunt me," she said on Twitter. "I just never knew when."

"I felt a little bit sad, because I wasn't really sure if they were booing at me or if it wasn't the outcome that they wanted," she said on the "Today" show this week. "I also could sympathize, because I've been a fan of Serena my whole life, and I knew how badly the crowd wanted her to win."